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89857916841 = 37111409276079
BaseRepresentation
bin101001110101111110…
…0101111111110101001
322120221100112010200010
41103223330233332221
52433012111314331
6105140303002133
76330522455640
oct1235374577651
9276840463603
1089857916841
11351214a69a0
12154b9299349
1386205659c4
1444c60b4357
15250db62e46
hex14ebf2ffa9

89857916841 has 32 divisors (see below), whose sum is σ = 149480755200. Its totient is φ = 46646138880.

The previous prime is 89857916833. The next prime is 89857916857. The reversal of 89857916841 is 14861975898.

It is not a de Polignac number, because 89857916841 - 23 = 89857916833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89857916831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187440 + ... + 463518.

It is an arithmetic number, because the mean of its divisors is an integer number (4671273600).

Almost surely, 289857916841 is an apocalyptic number.

It is an amenable number.

89857916841 is a deficient number, since it is larger than the sum of its proper divisors (59622838359).

89857916841 is a wasteful number, since it uses less digits than its factorization.

89857916841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277509.

The product of its digits is 34836480, while the sum is 66.

The spelling of 89857916841 in words is "eighty-nine billion, eight hundred fifty-seven million, nine hundred sixteen thousand, eight hundred forty-one".

Divisors: 1 3 7 11 21 33 77 231 1409 4227 9863 15499 29589 46497 108493 276079 325479 828237 1932553 3036869 5797659 9110607 21258083 63774249 388995311 1166985933 2722967177 4278948421 8168901531 12836845263 29952638947 89857916841